Multi-terminal high-rate lead-carbon battery

Abstract

The utility model discloses a multi-terminal high-magnification lead carbon battery which comprises a battery shell and a battery cover, at least one pole group is arranged in the battery shell, and batteries with different voltages (capacities) can be formed by connecting the pole groups in series (parallel). The plate group comprises a positive plate, a negative plate and a partition plate arranged between the positive plate and the negative plate, and conductive pieces are respectively arranged on top tabs of the positive plate and the negative plate of the plate group. A lead sleeve is embedded in the battery cover, the lead sleeve is integrally formed and embedded in the battery cover when the battery cover is subjected to injection molding, the lead sleeve is connected with a conductive piece at the upper part of the pole group, a plurality of copper core terminals are arranged on the lead sleeve, and the copper core terminals are connected with copper bars through bolts.

Description

Technical Field

[0001] The utility model relates to the technical field of high-rate lead-carbon batteries, in particular to a multi-terminal high-rate lead-carbon battery. Background Art

[0002] With the rapid development of the communications industry, investment in information construction has gradually increased. The market demand for high-current and high-voltage system lead-carbon batteries (hereinafter referred to as high-power lead-carbon batteries) in IDC computer rooms, data centers, high-power UPS computer rooms, etc. is increasing. As a barrier to information security, high-power lead-carbon batteries, in addition to discharge performance and life performance, are increasingly valued for their safety performance. The conductive current carrier of large current discharge is the first safety performance that needs to be considered.

[0003] High-power lead-carbon batteries have a large discharge current, requiring the conductive parts to reach a certain cross-sectional area (current carrying capacity). Both the internal and external conductive parts of the lead-carbon battery (the external conductive parts of the high-rate battery usually refer to the copper bar) have the conditions to directly increase the cross-sectional area to meet the high-current performance of the high-power lead-carbon battery, but increasing the cross-sectional area of ​​the copper bar brings safety hazards to the battery use process. Due to assembly tolerance reasons, the height of the battery terminal cannot be on a flat surface. When a copper bar is connected to multiple terminals, the effective contact area between the copper bar and the terminal is directly related to the thickness and width of the copper bar because the terminals are high, low and tilted. The thicker and wider the copper bar, the less likely it is to deform, the smaller the effective contact area between the copper bar and the terminal, and the greater the contact internal resistance. It is easy to cause overheating of the connecting strip and the battery terminal during high current charging and discharging, which not only has a great impact on the sealing safety of the lead-carbon battery pole, but also easily causes fire hazards. Utility Model Content

[0004] In order to solve the problems mentioned in the above background technology, the utility model provides a multi-terminal high-rate lead-carbon battery.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multi-terminal high-rate lead-carbon battery includes a battery shell and a battery cover. At least one pole group is arranged inside the battery shell. By connecting the pole groups in series (parallel), batteries of different voltages (capacities) can be formed. The pole group includes a positive plate, a negative plate, and a separator arranged between the positive plate and the negative plate. Conductive parts are respectively arranged on the top pole ears of the positive plate and the negative plate of the pole group. A lead sleeve is embedded in the battery cover. The lead sleeve is integrally formed and embedded in the battery cover during injection molding. The lead sleeve is connected to the upper conductive part of the pole group. A plurality of copper core terminals are arranged on the lead sleeve. The copper core terminals are connected to copper bars by bolts.

[0007] Furthermore, the conductive member includes a busbar fixedly connected to the positive plate and the negative plate, each busbar is provided with a pole, a through hole is opened on the lead sleeve, the through hole is truncated cone or cylindrical, the pole is inserted into the through hole, and the lead sleeve and the pole are welded together at the top of the through hole by welding.

[0008] Furthermore, a groove is reserved at the top of the through hole.

[0009] Furthermore, the inner wall of the battery shell is slidably connected to a support column, a mounting plate is provided at the bottom end of the support column, a mounting groove is opened at the top end of the mounting plate, and multiple pole groups are arranged in the mounting groove.

[0010] Furthermore, the side wall of the support column is rotatably connected to a threaded rod, the threads at both ends of the threaded rod are rotated in opposite directions, both ends of the threaded rod are threadedly connected to the fixing plate, and a rotating part is provided at the side end of the threaded rod.

[0011] Furthermore, the side wall of the support column is provided with a rack, the side wall of the battery shell is rotatably connected to a rotating shaft, the rotating shaft is provided with a gear, the gear is meshed with the rack, the rotating shaft is also provided with a ratchet, the side wall of the battery shell is rotatably connected to a pawl, and the pawl abuts against the ratchet.

[0012] Furthermore, a limiting groove is provided at a position corresponding to the bottom end of the battery cover and the supporting column, and the limiting groove is engaged with the top end of the supporting column.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By increasing the number of battery terminals and the number of copper bars to meet the current carrying capacity of the battery for high current discharge, the problem of unstable effective contact area and contact internal resistance between the copper bar and the terminal caused by increasing the width or thickness of the copper bar and causing the copper bar to be difficult to deform is avoided. The risk of severe heating of the terminal affecting the sealing performance of the pole or even fire during high current charging and discharging of high-power lead-carbon batteries is further avoided, thereby improving the safety of high-power lead-carbon batteries.

[0015] 2. The lead sleeve and the battery cover are injection molded into one piece, and the lead sleeve has multiple annular grooves, which increases the contact and engagement area between the battery cover and the lead sleeve. Compared with the traditional straight-out structure terminal, it has a better anti-liquid seepage effect.

[0016] 3. When a fault occurs inside the battery, the rotating shaft is rotated, and the support column can be driven to rise through the meshing connection of the gear and the rack, thereby driving the mounting plate to rise, and engaging with the top of the support column through the limit groove. When the support column rises, the battery cover can be pushed to rise synchronously, and the pole group can be lifted out of the battery shell for easy maintenance. By lifting the battery cover synchronously, the lead sleeve and the pole welding point can be prevented from breaking.

[0017] In summary, the utility model overcomes the shortcomings of the prior art, has a reasonable design, wide applicability, and has high social use value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the connection between the copper busbar of the utility model and terminals with different flatness;

[0020] Figure 2 For the utility model Figure 1 A magnified view of the structure at center;

[0021] Figure 3 This is a dissection diagram of the battery cover (lead sleeve part) of the utility model;

[0022] Figure 4 This is a sectional view of the connection between the pole group and the lead sleeve of the high-rate lead-carbon battery of the utility model;

[0023] Figure 5 This is a connection diagram of a high-rate lead-carbon battery pack of the utility model;

[0024] Figure 6 This is a schematic diagram of the battery shell structure of the utility model;

[0025] Figure 7 This is a schematic diagram of the support column structure of the utility model;

[0026] Figure 8 For the utility model Figure 6 A magnified view of the structure at B in the middle;

[0027] Fig. 9 This is a schematic diagram of the structure of the drive assembly of the utility model.

[0028] In the figure: battery shell 1, battery cover 2, pole group 3, positive plate 4, negative plate 5, separator 6, bus bar 7, pole 8, butt welding 9, lead sleeve 10, annular groove 11, through hole 12, groove 13, copper core terminal 14, copper bus 15, mounting plate 110, support column 120, rack 121, threaded rod 122, fixing plate 123, rotating member 124, rotating shaft 101, ratchet 102, rotating end 103, pawl 104, gear 105. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0030] Reference Figure 1-9 A multi-terminal high-rate lead-carbon battery comprises a battery shell 1 and a battery cover 2. At least one electrode group (3) is arranged inside the battery shell 1. By connecting the electrode groups (3) in series (parallel), batteries with different voltages (capacities) can be formed. The electrode group (3) comprises a positive electrode plate (4), a negative electrode plate (5), and a separator (6) arranged between the positive electrode plate (4) and the negative electrode plate (5). The top electrode ears of the positive electrode plate (4) and the negative electrode plate (5) of the electrode group (3) are respectively provided with conductive parts. A lead sleeve (10) is embedded in the battery cover (2). A plurality of copper core terminals (14) are arranged on the lead sleeve (10). The copper core terminals (14) are connected to copper bars (15) via bolts (151).

[0031] By arranging a plurality of copper core terminals 14 on the lead sleeve 10, the copper core terminals 14 are connected to the copper busbar 15 by bolts 151. By increasing the number of the copper busbar 15, compared with the solution of increasing the width of the copper busbar or increasing the thickness of the copper busbar, a larger heat dissipation surface area is provided, the temperature of the copper busbar 15 is lower, and the heat generated at the highest internal resistance can be quickly transferred to the copper busbar 15 for heat dissipation, thereby preventing the high temperature of the copper core terminal 14 and the lead sleeve 10 from affecting their sealing performance. Example 2

[0032] Reference Figure 1-9 The difference between this embodiment and embodiment 1 is that the conductive member includes a bus bar 7 fixedly connected to the positive plate 4 and the negative plate 5, and a pole 8 is provided on the bus bar 7. A through hole 12 is opened on the lead sleeve 10, and the through hole 12 is truncated cone-shaped or cylindrical. The pole 8 is inserted into the through hole 12, and the lead sleeve 10 and the pole 8 are welded together at the top of the through hole 12 by welding. A groove 13 is reserved at the top of the through hole 12, and red and black identification glue can be dripped into the groove 13 to play the role of identifying the positive and negative poles, and also to prevent the electrolyte in the battery from crawling out of the battery along the bonding interface.

[0033] The lead sleeve 10 and the battery cover 2 are integrally formed by injection molding, and the lead sleeve 10 is provided with a plurality of annular grooves, which increases the contact and engagement area between the battery cover 2 and the lead sleeve 10, and has a better anti-liquid seepage effect than the traditional straight-out structure terminal. Example 3

[0034] Reference Figure 1-9 The difference between this embodiment and embodiment 2 is that a support column 120 is slidably connected to the inner wall of the battery shell 1, a mounting plate 110 is provided at the bottom end of the support column 120, a mounting groove 111 is provided at the top of the mounting plate 110, and multiple pole groups 3 are all arranged in the mounting groove 111, and a threaded rod 122 is rotatably connected to the side wall of the support column 120, and the threads at both ends of the threaded rod 122 are rotated in opposite directions, both ends of the threaded rod 122 are threadedly connected to a fixing plate 123, and a rotating member 124 is provided at the side end of the threaded rod 122.

[0035] Fix the pole group 3 in the installation groove 111, and use the tool to rotate the rotating part 124 to drive the threaded rod 122 to rotate, thereby driving the fixing plate 123 to move toward the center, and the fixing plate 123 abuts against the partition 6. At this time, the pole group 3 is fixed, which is convenient for the pole group 3 to be installed in the battery shell. Example 4

[0036] Reference Figure 1-9 The difference between this embodiment and embodiment 3 is that a limiting groove is provided at a position corresponding to the bottom end of the battery cover 2 and the support column 120, the limiting groove is engaged with the top end of the support column 120, a gear 121 is provided on the side wall of the support column 120, and a rotating shaft 101 is rotatably connected to the side wall of the battery shell 1. A gear 105 is provided on the rotating shaft 101, and the gear 105 is meshed with the gear 121. A ratchet 102 is also provided on the rotating shaft 101, and a pawl 104 is rotatably connected to the side wall of the battery shell 1, and the pawl 104 abuts against the ratchet 102.

[0037] By rotating the rotating shaft 101, the support column 120 can be driven to rise through the meshing connection of the gear 105 and the rack 121, thereby driving the mounting plate 110 to rise. The limiting groove engages with the top of the support column 120, and the battery cover 2 can be pushed to rise synchronously while the support column 120 rises. The pawl 104 abuts against the ratchet 102 to limit the unidirectional upward movement of the support column 120. When poor contact occurs inside the battery, the mounting plate 110 can be driven to rise by rotating the rotating shaft 101, and the pole group 3 can be lifted out of the battery shell 1 for easy maintenance. The battery cover 2 is lifted synchronously to avoid breakage at the welding point between the lead sleeve 10 and the pole 8.

[0038] Working principle: fix the pole group 3 in the installation groove 111, and use the tool to rotate the rotating member 124 to drive the threaded rod 122 to rotate, thereby driving the fixing plate 123 to move toward the center, and the fixing plate 123 abuts against the partition 6. At this time, the pole group 3 is fixed, which is convenient for the pole group 3 to be installed in the battery shell;

[0039] The lead sleeve 10 and the battery cover 2 are integrally formed by injection molding, and the lead sleeve 10 has multiple annular grooves, which increases the contact and engagement area between the battery cover 2 and the lead sleeve 10, and has a better anti-liquid seepage effect than the traditional straight-out structure terminal;

[0040] By arranging a plurality of copper core terminals 14 on the lead sleeve 10, the copper core terminals 14 are connected to the copper bar 15 by bolts 151. By increasing the number of copper bars 15, compared with the solution of increasing the width of the copper bar or increasing the thickness of the copper bar, a larger heat dissipation surface area is provided, the temperature of the copper bar 15 is lower, and the heat generated at the highest internal resistance can be quickly transferred to the copper bar 15 for heat dissipation, thereby preventing the high temperature of the copper core terminal 14 and the lead sleeve 10 from affecting their sealing performance;

[0041] When a fault occurs inside the battery, the rotating shaft 101 is rotated, and the support column 120 can be driven to rise through the meshing connection of the gear 105 and the rack 121, thereby driving the mounting plate 110 to rise, and engaging with the top of the support column 120 through the limiting groove. When the support column 120 rises, it can push the battery cover 2 to rise synchronously, and lift the pole group 3 out of the battery shell 1 for easy maintenance. In addition, by lifting the battery cover 2 synchronously, it can avoid breakage of the welding joint between the lead sleeve 10 and the pole 8.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-terminal high-rate lead-carbon battery, comprising a battery shell (1) and a battery cover (2), characterized in that: At least one electrode group (3) is provided inside the battery shell (1), and batteries with different voltages / capacities can be formed by connecting the electrode groups (3) in series or in parallel. The electrode group (3) comprises a positive electrode plate (4), a negative electrode plate (5), and a separator (6) arranged between the positive electrode plate (4) and the negative electrode plate (5). The top electrode ears of the positive electrode plate (4) and the negative electrode plate (5) of the electrode group (3) are respectively provided with conductive parts. A lead sleeve (10) is embedded in the battery cover (2), and a plurality of copper core terminals (14) are provided on the lead sleeve (10). The copper core terminals (14) are connected to copper bars (15) via bolts (151).

2. A multi-terminal high-rate lead-carbon battery according to claim 1, characterized in that: The conductive member comprises a busbar (7) fixedly connected to the positive electrode plate (4) and the negative electrode plate (5), the busbar (7) is provided with a pole (8), and the lead sleeve (10) is provided with a through hole (12).

3. A multi-terminal high-rate lead-carbon battery according to claim 2, characterized in that: A groove (13) is provided at the top of the through hole (12).

4. A multi-terminal high-rate lead-carbon battery according to claim 1, characterized in that: The inner wall of the battery shell (1) is slidably connected to a support column (120), a mounting plate (110) is provided at the bottom end of the support column (120), a mounting groove (111) is provided at the top end of the mounting plate (110), and a plurality of electrode groups (3) are fixed in the mounting groove (111).

5. A multi-terminal high-rate lead-carbon battery according to claim 4, characterized in that: The side wall of the support column (120) is rotatably connected to a threaded rod (122), both ends of the threaded rod (122) are threadedly connected to a fixing plate (123), and a rotating member (124) is provided at the side end of the threaded rod (122).

6. A multi-terminal high-rate lead-carbon battery according to claim 5, characterized in that: A gear track (121) is provided on the side wall of the support column (120); a rotating shaft (101) is rotatably connected to the side wall of the battery shell (1); a gear (105) is provided on the rotating shaft (101); a ratchet (102) is also provided on the rotating shaft (101); and a ratchet (104) is rotatably connected to the side wall of the battery shell (1).

7. A multi-terminal high-rate lead-carbon battery according to claim 6, characterized in that: A limiting groove is provided at a position corresponding to the bottom end of the battery cover (2) and the support column (120), and the limiting groove is engaged with the top end of the support column (120).

Images